Typography

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No hurricanes have been active in the Atlantic Basin since July 12 despite August being the second-most-active month for Atlantic hurricanes.

However, Dr. Phil Klotzbach, a tropical scientist at Colorado State University, cautioned that a hurricane-less August hasn't meant a quiet September in the past.

September has recorded the most Atlantic hurricane formations since 1851 with 404. That's an average of two or three forming in the month every year, according to NOAA. August ranks second with 245 hurricanes, and October ranks third with 205.

The period between Aug. 20 and Oct. 10 accounts for 60 percent of all Atlantic Basin hurricanes and 75 percent of all major hurricanes (Category 3 or stronger) in that basin, according to Dr. Klotzbach.

September has the largest area of development zone based on climatological history, as shown in the map below.

Last September was the most active month on record for Atlantic hurricanes following Category 5 hurricanes Irma and Maria and Category 4 Hurricane Jose.